Initial commit

2025-05-08 18:12:52 +03:00
commit b25690b64c
1540 changed files with 648528 additions and 0 deletions
--- a/internal/moon/chatMemberUpdated.go
+++ b/internal/moon/chatMemberUpdated.go
@@ -0,0 +1,102 @@
+package moon
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/NicoNex/echotron/v3"
+)
+
+// newChatMember parses one of types ChatMemberUpdated event.
+// https://core.telegram.org/bots/api#chatmemberupdated
+func newChatMember(msg *echotron.Update) {
+	var (
+		joinTimestampString string
+	)
+
+	// Spam bots come with these attributes.
+	// msg.ChatMember.NewChatMember.Status = "member"
+	// msg.ChatMember.OldChatMember.User != nil
+	// msg.ChatMember.OldChatMember.Status = "left"
+
+	Log.Infof(
+		"User %s %s (username = %s, id = %d) in chat %s %s (%d) now %s was %s",
+		msg.ChatMember.NewChatMember.User.FirstName,
+		msg.ChatMember.NewChatMember.User.LastName,
+		msg.ChatMember.NewChatMember.User.Username,
+		msg.ChatMember.NewChatMember.User.ID,
+		msg.ChatMember.Chat.Type,
+		msg.ChatMember.Chat.Title,
+		msg.ChatMember.Chat.ID,
+		msg.ChatMember.NewChatMember.Status,
+		msg.ChatMember.OldChatMember.Status,
+	)
+
+	// To avoid race conditions.
+	// To really avoid them, this particular event and newChatMember handler must be serialized via channel.
+	time.Sleep(10 * time.Second)
+
+	Log.Info("Processing UpdateUser event")
+
+	// Try to get timestamp when this member joined to chat
+	joinTimestampString = Cfg.GetValue(
+		"NewMembers",
+		fmt.Sprintf("%d", msg.ChatMember.Chat.ID),
+		fmt.Sprintf("%d", msg.ChatMember.NewChatMember.User.ID),
+	)
+
+	// Нормальный человек, который зашёл с правильным ивентом, через message с атрибутом new_chat_members
+	// https://core.telegram.org/bots/api#message
+	if joinTimestampString != "" {
+		return
+	}
+
+	// Check some other attributes.
+	if msg.ChatMember.OldChatMember.Status == "left" && msg.ChatMember.NewChatMember.Status == "member" {
+		leftTimestampString := Cfg.GetValue(
+			"LeftMembers",
+			fmt.Sprintf("%d", msg.ChatMember.Chat.ID),
+			fmt.Sprintf("%d", msg.ChatMember.NewChatMember.User.ID),
+		)
+
+		// Yes, this member definitely left chat at some point, we have no question to him/her.
+		if leftTimestampString != "" {
+			return
+		}
+
+		// Very suspicious coincedence, looks like we've got bot here.
+		banDate := time.Now().Unix() + 45
+
+		if res, err := Tg.BanChatMember(
+			msg.ChatID(),
+			msg.ChatMember.NewChatMember.User.ID,
+			&echotron.BanOptions{
+				UntilDate: int(banDate),
+			},
+		); err != nil {
+			Log.Errorf(
+				"Unable to ban user with id %d in chat %s: %s",
+				msg.ChatMember.NewChatMember.User.ID,
+				msg.ChatID(),
+				res.Description,
+			)
+		} else {
+			if !res.Ok {
+				Log.Errorf(
+					"Unable to ban user with id %d in chat %s: %s",
+					msg.ChatMember.NewChatMember.User.ID,
+					msg.ChatID(),
+					res.Description,
+				)
+			} else {
+				Log.Infof(
+					"Banned user with id %d in chat %d.",
+					msg.ChatMember.NewChatMember.User.ID,
+					msg.ChatID(),
+				)
+			}
+		}
+	}
+}
+
+/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */